<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <script src="../vue.2.5.1.js"></script>
</head>

<body>
    <div id="sky">
        <span v-for="n in 10">
            {{message}}--{{n}}
        </span>
    </div>
</body>
<script>
    var app = new Vue({
        el: "#sky",
        data: {
            message: "mao"
        }

    })
</script>

</html>